100-86= 8276-528= 973-388= 217-53= 4719-754= 3176-834= 174-75= 271-75= 3176-624= 4288-723= x-43=15 25-x=17 481-471=x 4281-865=x

0 bình luận về “100-86= 8276-528= 973-388= 217-53= 4719-754= 3176-834= 174-75= 271-75= 3176-624= 4288-723= x-43=15 25-x=17 481-471=x 4281-865=x”

1. `100-86= 14`

   `8276-528= 7748 `

   `973-388= 585 `

   `217-53= 164 `

   `4719-754= 3965 `

   `3176-834=2342 `

   `174-75=99`

   `271-75= 196 `

   `3176-624= 2552 `

   `4288-723= 3565 `

   a, `x – 43 = 15 `

   ` x = 15 + 43 `

   ` x = 58 `

   b, ` 25 – x = 17 `

   ` x = 25 – 17 `

   `x = 8 `

   c, ` 481 – 471 = x `

   ` 10 = x `

   d, `4281 – 865 = x `

   ` 3416 = x `

   e, ` y – 58 = 25 `

   ` y = 25 + 58 `

   ` y = 83 `

   g, ` 52 – y = 26 `

   ` y = 52 – 26 `

   ` y = 26 `

   f ,  ` a – 74 = 26 `

   ` a = 26 + 74 `

   ` a = 100` 

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